Edge cutting tool and edge cutting device for photovoltaic module

Abstract

The utility model relates to an edge cutting tool and an edge cutting device for a photovoltaic module. The edge cutting tool comprises a movable tool apron, an edge cutting knife and a stripping piece. The trimming cutter is arranged on the cutter holder and can be used for trimming the photovoltaic module; the stripping part is arranged on the tool apron, the stripping part is located on the rear side of the trimming tool in the moving direction of the tool apron, and the stripping part can remove residual glue on the surface of the photovoltaic module. According to the edge cutting device, the stripping piece is arranged on the rear side of the edge cutting knife, so that when the edge cutting knife moves in the length direction or the width direction of the photovoltaic module to cut the edge of the photovoltaic module, adhesive residues on the surfaces of a front glass plate and a back glass plate of the photovoltaic module are removed, and the conditions of adhesive shortage, adhesive breakage and adhesive residue adhesion caused by poor adhesive overflow when the photovoltaic module is framed are avoided; the photovoltaic module does not need secondary reworking, the first-pass yield of a workshop can be guaranteed, the water blocking performance and the sealing performance of the photovoltaic module are not affected, and therefore the service life of the photovoltaic module can be guaranteed.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module processing technology, and in particular to a photovoltaic module edge trimming tool and edge trimming device. Background Technology

[0002] Edge trimming is a crucial step in photovoltaic (PV) module production. It involves precisely processing the edges of the modules to optimize power generation performance, improve safety, facilitate installation and maintenance, and enhance aesthetics. This results in better performance in photoelectric conversion, operational safety, engineering construction, and overall visual appeal. However, residual adhesive after trimming can transfer to the front and back glass panels of the PV module. This residual adhesive can lead to problems during framing, such as insufficient adhesive, broken adhesive, and adhesive residue buildup. This necessitates rework, impacting the first-pass yield. Furthermore, excessive silicone adhesive can affect the module's water resistance and sealing performance, ultimately reducing its lifespan. Utility Model Content

[0003] Therefore, it is necessary to provide a trimming tool and trimming device for photovoltaic modules to address the above-mentioned technical problems.

[0004] A beveling tool for a photovoltaic module, comprising:

[0005] Movable tool holder;

[0006] A beveling cutter is disposed on the cutter holder, the beveling cutter being capable of beveling the edges of the photovoltaic module; and

[0007] A stripping member is provided on the blade holder, and the stripping member is located behind the edge-cutting blade in the moving direction of the blade holder. The stripping member is capable of removing residual adhesive from the surface of the photovoltaic module.

[0008] The aforementioned edge-trimming cutter, with a peeling component on its rear side, can remove residual adhesive from the front and back glass surfaces of the photovoltaic module when the edge-trimming cutter moves along the length or width of the photovoltaic module. This prevents adhesive overflow during frame assembly, which can lead to insufficient adhesive, broken adhesive, or residual adhesive adhesion. The photovoltaic module does not require rework, ensuring a high first-pass yield in the workshop. It also does not affect the water-blocking and sealing performance of the photovoltaic module, thus guaranteeing its lifespan.

[0009] In one embodiment, the stripper includes a connected mounting base and a brush, the mounting base being fixed to the blade holder, and the brush facing the circumferential side of the photovoltaic module.

[0010] In one embodiment, the brush is inclined relative to the beveling blade, wherein the included angle between the brush and the beveling blade is 30° to 40°.

[0011] In one embodiment, the tool holder has a mounting hole for mounting the mounting base.

[0012] In one embodiment, the stripping member includes a roller brush and a driving member. The roller brush is rotatably disposed on the blade holder and faces the circumferential side of the photovoltaic module. The driving member is disposed on the blade holder and can drive the roller brush to rotate.

[0013] In one embodiment, the roller brush protrudes from the edge-cutting blade in a horizontal direction perpendicular to the direction of movement of the blade holder, wherein the length D of the roller brush protruding from the edge-cutting blade is 1mm to 2mm.

[0014] In one embodiment, the drive unit includes a drive motor, the output shaft of which is connected to the roller brush.

[0015] In one embodiment, the stripper further includes a mounting bracket for mounting the roller brush onto the blade holder.

[0016] In one embodiment, the distance between the stripper and the beveling blade along the moving direction of the blade holder is 4cm to 6cm.

[0017] A photovoltaic module edge trimming device includes a frame and an edge trimming cutter as described in any of the preceding claims, wherein the cutter holder is movably disposed on the frame.

[0018] The aforementioned edge-trimming device, by providing a peeling component on the rear side of the edge-trimming blade, can remove residual adhesive from the front and back glass surfaces of the photovoltaic module when the edge-trimming blade moves along the length or width direction of the photovoltaic module to trim the edge. This avoids situations such as insufficient adhesive, broken adhesive, and residual adhesive adhesion caused by poor adhesive overflow during photovoltaic module framing. The photovoltaic module does not require secondary rework, ensuring a first-pass yield in the workshop. It also does not affect the water-blocking and sealing performance of the photovoltaic module, thereby ensuring the lifespan of the photovoltaic module. Attached Figure Description

[0019] Figure 1 This is a top view of a beveling tool for a photovoltaic module provided in an embodiment of this application.

[0020] Figure 2 A top view of a beveling tool for a photovoltaic module provided in another embodiment of this application.

[0021] The labels in the attached diagram are explained as follows:

[0022] 10. Edge trimming tool; 100. Tool holder; 200. Edge trimming blade; 300. Peeling component; 310. Mounting base; 320. Brush; 330. Roller brush; 331. First rotating shaft; 332. Second rotating shaft; 340. Drive component; 350. Mounting bracket; 351. Connecting rod; 352. First connecting plate; 353. Second connecting plate. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0029] As the core component of a photovoltaic (PV) power generation system, photovoltaic (PV) modules are characterized by inexhaustible resources, clean and zero-emission power generation, flexible installation, low maintenance costs, and long service life. They typically consist of stacked solar cells, a front glass panel, an encapsulating film, and a back glass panel. After the solar cells, front glass panel, encapsulating film, and back glass panel are tightly bonded together using a lamination process to form a PV module, the modules need to be edge-trimmed. Excess frame or encapsulating material is cut off from the edges to ensure the module's dimensions meet design requirements. Further processing, such as grinding, polishing, and chamfering, optimizes power generation performance, improves safety, facilitates installation and maintenance, and enhances aesthetics, resulting in better performance in photoelectric conversion, safety, engineering construction, and overall visual appeal.

[0030] Currently, laser cutting machines or mechanical cutters are commonly used to cut the edges of photovoltaic modules. However, after the photovoltaic modules are cut, residual adhesive will flip onto the front and back glass plates of the photovoltaic modules. The residual adhesive on the front and back glass plates can cause poor adhesive overflow during framing, resulting in insufficient adhesive, broken adhesive, and residual adhesive adhesion. This leads to the photovoltaic modules needing to be reworked, affecting the first-pass yield of the workshop. Poor silicone adhesive overflow can also affect the water resistance and sealing performance of the modules, leading to a decrease in module lifespan.

[0031] In response, one embodiment of this application provides a beveling tool that can be applied in the field of photovoltaic module processing. After lamination, the photovoltaic module's edges can be beveling to ensure its dimensions meet design requirements. This optimizes power generation performance, improves safety, facilitates installation and maintenance, and enhances aesthetics, resulting in better performance in photovoltaic module photoelectric conversion, safety, engineering construction, and overall visual appeal. Of course, this beveling tool can also be installed in other related equipment requiring edge beveling in other fields.

[0032] like Figure 1 As shown, the edge-trimming tool 10 may include a tool holder 100, an edge-trimming blade 200, and a stripping component 300. The tool holder 100 is movably mounted on the frame of the edge-trimming device and can move along the length or width direction of the photovoltaic module to facilitate edge trimming. The frame of the edge-trimming device may be equipped with a drive mechanism and a guide rail. The drive mechanism can drive the tool holder 100 to move directionally along the guide rail. The drive mechanism may include a motor and a transmission assembly, which may be a lead screw and nut structure or a conveyor belt structure.

[0033] The beveling blade 200 is located on the lower side of the blade holder 100 and is used to cut photovoltaic modules. It can be a laser cutter or a mechanical cutter. It should be noted that, to clearly show the positional relationship between the beveling blade 200 and the stripping component 300, Figure 1 The edge-cutting tool 200 is rendered with a perspective effect. Under normal circumstances, when looking down at the edge-cutting tool 10, the edge-cutting tool 200 is not visible.

[0034] The stripper 300 is mounted on the blade holder 100 and is located behind the edge-trimming blade 200 along the moving direction of the blade holder 100. The stripper 300 can remove residual adhesive from the surface of the photovoltaic module. When the edge-trimming blade 200 moves along the length or width of the photovoltaic module to trim the edge, the residual adhesive will flip onto the front and back glass plates of the photovoltaic module. At this time, since the stripper 300 is located behind the edge-trimming blade 200, it will remove the residual adhesive from the surface of the photovoltaic module. This avoids problems such as insufficient adhesive, broken adhesive, and adhesive residue adhesion caused by poor adhesive overflow during photovoltaic module mounting. The photovoltaic module does not need to be reworked, which can ensure the first-pass yield in the workshop and will not affect the water-blocking performance and sealing performance of the photovoltaic module, thereby ensuring the life of the photovoltaic module.

[0035] As can be seen, the edge-trimming tool 10 of this application, by providing a peeling member 300 on the rear side of the edge-trimming tool 200, can remove residual adhesive on the surface of the front and back glass panels of the photovoltaic module when the edge-trimming tool 200 moves along the length or width direction of the photovoltaic module to trim the edge of the photovoltaic module. This avoids the situation of insufficient adhesive, broken adhesive, and residual adhesive sticking caused by poor adhesive overflow during the assembly of the photovoltaic module. The photovoltaic module does not need to be reworked, which can ensure the first-pass yield of the workshop and will not affect the water-blocking performance and sealing performance of the photovoltaic module, thereby ensuring the life of the photovoltaic module.

[0036] In some embodiments of this application, the distance between the stripping member 300 and the edge-trimming blade 200 along the moving direction of the blade holder 100 is 4cm to 6cm, for example, it can be set to 4cm, 4.2cm, 4.4cm, 4.5cm, 4.6cm, 4.8cm, 5.0cm, 5.2cm, 5.4cm, 5.5cm, 5.6cm, 5.8cm, 6cm, etc. Setting the distance between the stripping member 300 and the edge-trimming blade 200 in this way can avoid interference between the stripping member 300 and the edge-trimming blade 200, allowing them to operate independently.

[0037] like Figure 1 As shown, in some embodiments of this application, the peeling member 300 includes a connected mounting base 310 and a brush 320. The mounting base 310 is fixed on the blade holder 100, and the brush 320 faces the circumferential side of the photovoltaic module. The brush 320 can fit closely to the circumferential side of the photovoltaic module. When the edge trimming is started, the brush 320 brushes behind the edge trimming blade 200 to promptly scrape and peel off the residual adhesive on the flipped glass plate.

[0038] The brush 320 can be made of soft bristles such as nylon, wool, boar bristle, or sponge to avoid damaging the front and back glass panels. The brush 320 can be connected to the mounting base 310 by means of bonding, heat pressing, or other methods.

[0039] The brush 320 is angled relative to the beveling blade 200. This angled arrangement allows the brush 320 to effectively remove residual adhesive from the front and back glass panels. The angle between the brush 320 and the beveling blade 200 is between 30° and 40°, for example, 30°, 31°, 32°, 33°, 34°, 35°, 36°, 37°, 38°, 39°, or 40°. This angle ensures that the brush 320 can effectively reach both the front and back glass panels of the photovoltaic module.

[0040] The tool holder 100 has a mounting hole for mounting the mounting base 310. The mounting hole can be a threaded hole, and a threaded component (such as a screw) can be installed in the mounting hole to fix the mounting base 310 onto the tool holder 100, facilitating the replacement of the stripper 300. Of course, in some other embodiments, the mounting base 310 can also be fixed onto the tool holder 100 by welding, snap-fitting, or other methods.

[0041] Regarding the number of mounting holes, two, three, or four holes can be spaced out; this application does not impose specific restrictions on this.

[0042] In another embodiment of this application, such as Figure 2As shown, the peeling member 300 may include a roller brush 330 and a driving member 340. The roller brush 330 is rotatably disposed on the cutter holder 100 and faces the circumferential side of the photovoltaic module. The driving member 340 is disposed on the cutter holder 100 and can drive the roller brush 330 to rotate. When the edge trimming is started, the driving member 340 drives the roller brush 330 to rotate. The roller brush 330, located behind the edge trimming cutter 200, can promptly scrape and peel off the residual adhesive that has been flipped onto the front and back glass plates. Figure 2 The arrows in the diagram represent the direction of movement of the tool holder 100. It should be noted that, to clearly show the positional relationship between the beveling tool 200 and the stripping component 300, Figure 2 The edge-cutting tool 200 is rendered with a perspective effect. Under normal circumstances, when looking down at the edge-cutting tool 10, the edge-cutting tool 200 is not visible.

[0043] The outer periphery of the roller brush 330 can be fitted with a soft rubber layer or a nylon layer, which can effectively remove residual adhesive from the front and back glass plates.

[0044] See Figure 2 The roller brush 330 protrudes from the beveling blade 200 in a horizontal direction perpendicular to the moving direction of the blade holder 100. This ensures that the roller brush 330 can contact the circumferential side of the photovoltaic module, effectively scraping and peeling off residual adhesive on the flipped-over front and back glass panels. The length D of the roller brush 330 protruding from the beveling blade 200 is 1mm to 2mm, for example, it can be set to 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, etc. This setting of the length D of the roller brush 330 protruding from the beveling blade 200 ensures that the roller brush 330 can contact the circumferential side of the photovoltaic module and can apply reasonable pressure to the rolling module, ensuring that residual adhesive on the flipped-over front and back glass panels can be scraped and peeled off without damaging the photovoltaic module due to excessive pressure.

[0045] The drive component 340 may include a drive motor, the output shaft of which is connected to the roller brush 330. This drive component 340 has a simple structure. The drive motor can be a stepper motor. Alternatively, in other embodiments, the drive component 340 may include a power cylinder and a transmission assembly, with the power input end of the transmission assembly connected to the piston rod of the power cylinder and the power input end of the transmission assembly connected to the roller brush 330. The transmission assembly can be a lead screw and nut structure.

[0046] See also Figure 2 In some embodiments of this application, the peeling member 300 further includes a mounting bracket 350 for mounting the roller brush 330 onto the blade holder 100. The mounting bracket 350 facilitates the installation of the roller brush 330.

[0047] As an example, such as Figure 2 As shown, the roller brush 330 has a first rotating shaft 331 and a second rotating shaft 332 at its two axial ends, respectively. The second rotating shaft 332 is connected to the drive component 340. The mounting bracket 350 may include a connecting rod 351, a first connecting plate 352, and a second connecting plate 353. The connecting rod 351 is fixed on the blade holder 100. The first connecting plate 352 and the second connecting plate 353 are spaced apart on the connecting rod 351. The first connecting plate 352 has a first through hole through which the first rotating shaft 331 can rotatably pass, and the second connecting plate 353 has a second through hole through which the second rotating shaft 332 can rotatably pass. Of course, in some other embodiments, the first rotating shaft 331 and the second rotating shaft 332 may be an integral structure, wherein the portion between the first rotating shaft 331 and the second rotating shaft 332 is located inside the roller brush 330.

[0048] The tool holder 100 has mounting holes for mounting the connecting rod 351. The mounting holes can be threaded holes, and threaded components (such as screws) can be installed in these holes to secure the connecting rod 351 to the tool holder 100, facilitating the replacement of the stripper 300. Of course, in some other embodiments, the connecting rod 351 can also be secured to the tool holder 100 by welding, snap-fitting, or other methods. Regarding the number of mounting holes, two, three, or four holes can be spaced out; this application does not impose a specific limitation on this.

[0049] The first connecting plate 352 can be connected to the connecting rod 351 by welding, screwing or other means, and the second connecting plate 353 can be connected to the connecting rod 351 by welding, screwing or other means.

[0050] Optionally, a first bearing is installed in the first through hole, and a second bearing is installed in the second through hole. The arrangement of the first bearing and the second bearing facilitates the rotation of the roller brush 330.

[0051] On the other hand, one embodiment of this application also provides a photovoltaic module edge trimming device, which includes a frame and an edge trimming cutter 10 as described in any of the above claims, wherein the cutter holder 100 of the edge trimming cutter 10 is movably disposed on the frame.

[0052] This edge-trimming device can be applied in the photovoltaic module processing field. After lamination, it can trim the edges of the photovoltaic modules to ensure that their dimensions meet design requirements. This optimizes power generation performance, improves safety, facilitates installation and maintenance, and enhances aesthetics, resulting in better performance in photovoltaic module photoelectric conversion, safety, engineering construction, and overall visual appeal. Of course, this edge-trimming device can also be installed in other fields requiring edge trimming.

[0053] As an example, the edge trimming device also includes a drive mechanism and a guide rail mounted on the frame. The drive mechanism can drive the tool holder 100 to move directionally along the guide rail. The drive mechanism may include a motor and a transmission assembly, which may be a lead screw and nut structure or a conveyor belt structure.

[0054] The edge trimming device of this application, by providing a peeling member 300 on the rear side of the edge trimming blade 200, can remove residual adhesive on the surface of the front and back glass panels of the photovoltaic module when the edge trimming blade 200 moves along the length or width direction of the photovoltaic module to trim the edge. This avoids the situation of insufficient adhesive, broken adhesive, and residual adhesive adhesion caused by poor adhesive overflow during the assembly of the photovoltaic module. The photovoltaic module does not need to be reworked, which can ensure the first-pass yield in the workshop and will not affect the water-blocking performance and sealing performance of the photovoltaic module, thereby ensuring the life of the photovoltaic module.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An edge trimming tool for a photovoltaic module, characterized by, The utility model relates to a kind of edge cutting tools (10), comprising: Movable tool holder (100); Edge cutting tool (200) is arranged on the tool holder (100), and the edge cutting tool (200) can edge cutting to the photovoltaic module;And Stripping piece (300) is arranged on the tool holder (100), and the stripping piece (300) is located at the rear side of the edge cutting tool (200) in the direction of movement of the tool holder (100), and the stripping piece (300) can remove the residual glue on the surface of the photovoltaic module.

2. The edged cutter of claim 1, wherein, The stripping piece (300) includes the mounting seat (310) and brush (320) connected, the mounting seat (310) is fixed on the tool holder (100), and the brush (320) faces the circumferential side of the photovoltaic module.

3. The edged cutter of claim 2, wherein, The brush (320) is arranged obliquely relative to the edge cutting tool (200), and the included angle between the brush (320) and the edge cutting tool (200) is 30 ° to 40 °.

4. The wiper blade of claim 2, wherein The tool holder (100) has mounting hole for mounting the mounting seat (310).

5. The edged cutter of claim 1 wherein, The stripping piece (300) includes roller brush (330) and driving element (340), the roller brush (330) is rotatably arranged on the tool holder (100) and faces the circumferential side of the photovoltaic module, and the driving element (340) is arranged on the tool holder (100) and can drive the roller brush (330) to rotate.

6. The edged cutter of claim 5, wherein, The roller brush (330) protrudes the edge cutting tool (200) in the horizontal direction perpendicular to the direction of movement of the tool holder (100), and the length D of the roller brush (330) protruding from the edge cutting tool (200) is 1mm~2mm.

7. The wiper blade of claim 5, wherein The driving element (340) includes driving motor, and the output shaft of the driving motor is connected with the roller brush (330).

8. The wiper blade of claim 5, wherein, The stripping piece (300) further includes mounting bracket (350), and the mounting bracket (350) is used for mounting the roller brush (330) on the tool holder (100).

9. The edged cutter of any one of claims 1 to 7, wherein, The distance between the stripping piece (300) and the edge cutting tool (200) in the direction of movement of the tool holder (100) is 4cm~6cm.

10. An edging device for a photovoltaic module, characterized in that The utility model relates to a kind of edge cutting tools (10), comprising: Movable tool holder (100); Edge cutting tool (200) is arranged on the tool holder (100), and the edge cutting tool (200) can edge cutting to the photovoltaic module;And Stripping piece (300) is arranged on the tool holder (100), and the stripping piece (300) is located at the rear side of the edge cutting tool (200) in the direction of movement of the tool holder (100), and the stripping piece (300) can remove the residual glue on the surface of the photovoltaic module. The stripping piece (300) includes the mounting seat (310) and brush (320) connected, the mounting seat (310) is fixed on the tool holder (100), and the brush (320) faces the circumferential side of the photovoltaic module. The brush (320) is arranged obliquely relative to the edge cutting tool (200), and the included angle between the brush (320) and the edge cutting tool (200) is 30 ° to 40 °. The tool holder (100) has mounting hole for mounting the mounting seat (310). The stripping piece (300) includes roller brush (330) and driving element (340), the roller brush (330) is rotatably arranged on the tool holder (100) and faces the circumferential side of the photovoltaic module, and the driving element (340) is arranged on the tool holder (100) and can drive the roller brush (330) to rotate. The roller brush (330) protrudes the edge cutting tool (200) in the horizontal direction perpendicular to the direction of movement of the tool holder (100), and the length D of the roller brush (330) protruding from the edge cutting tool (200) is 1mm~2mm. The driving element (340) includes driving motor, and the output shaft of the driving motor is connected with the roller brush (330). The stripping piece (300) further includes mounting bracket (350), and the mounting bracket (350) is used for mounting the roller brush (330) on the tool holder (100). The distance between the stripping piece (300) and the edge cutting tool (200) in the direction of movement of the tool holder (100) is 4cm~6cm. The utility model relates to a kind of edge cutting tools (10), comprising: Movable tool holder (100); Edge cutting tool (200) is arranged on the tool holder (100), and the edge cutting tool (200) can edge cutting to the photovoltaic module.

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